#CB0A52
Closest named color: Ruby (#CA0147). oklch(54.1% 0.213 10), rgb(203, 10, 82).
Aa
White text reads best on this color (5.66:1).
About this color
#CB0A52 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.213 and its hue 10°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.015 away. White text reads best on it, at 5.66:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.213) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #CB0A52 |
| RGB | rgb(203, 10, 82) |
| HSL | hsl(338, 91%, 42%) |
| OKLCH | oklch(54.1% 0.213 10) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #CB0A52 | 5.66:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #CB0A52 | 3.70:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #CB0A52 text on white | 5.66:1 | AA | Lc 76.0 | Fine for body text |
| #CB0A52 text on black | 3.70:1 | AA large text | Lc -25.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FCE3E5
oklch(93.7% 0.028 12.1)
-
Step 200
200
#FACBD1
oklch(88.4% 0.054 9.6)
-
Step 300
300
#F7A7B2
oklch(80.9% 0.095 10.4)
-
Step 400
400
#EF738B
oklch(70.7% 0.154 9.7)
-
Step 500
500
#E5466E
oklch(63% 0.196 9.9)
-
Step 600
600 (this color)
#CB0A52
oklch(54.1% 0.213 10)
-
Step 700
700
#B30047
oklch(49% 0.196 9.8)
-
Step 800
800
#920C3A
oklch(42.7% 0.163 10)
-
Step 900
900
#751832
oklch(37.6% 0.127 9.8)
-
Step 950
950
#45111D
oklch(27% 0.08 10.5)
#CB0A52 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4E4F53 | 0.241 |
| Deuteranopia (no green cones) | #7C744D | 0.219 |
| Tritanopia (no blue cones) | #DF0031 | 0.059 |
| Achromatopsia (no color) | #676767 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB0A52
#CB0A52
oklch(54.1% 0.213 10)
- #00807B
#00807B
oklch(54.1% 0.093 190)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #CB0A52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.015
- Lipstick #D5174E ΔE 0.026
- Cherry #CF0234 ΔE 0.039
- Dark Hot Pink #D90166 ΔE 0.039
- Rose Red #BE013C ΔE 0.039
- Cerise #DE0C62 ΔE 0.044
- Lipstick Red #C0022F ΔE 0.049
- Crimson #DC143C ΔE 0.050
Use #CB0A52 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.